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UNAUDITED CONDENSED STATEMENTS OF CONSOLIDATED OPERATIONS (USD $) In Millions, except Per Share data, unless otherwise specified | 3 Months Ended
--- | ---
Mar. 31, 2014 | Mar. 31, 2013
Revenues: |  |
Third parties | $ 12,874.4 | $ 11,377.2
Related parties | 35.5 | 5.9
Total revenues (see Note 11) | 12,909.9 | 11,383.1
Operating costs and expenses: |  |
Third parties | 11,618.4 | 10,206.2
Related parties | 262.1 | 214.2
Total operating costs and expenses | 11,880.5 | 10,420.4
General and administrative costs: |  |
Third parties | 23.0 | 19.7
Related parties | 30.2 | 29.8
Total general and administrative costs | 53.2 | 49.5
Total costs and expenses | 11,933.7 | 10,469.9
Equity in income of unconsolidated affiliates | 56.5 | 44.5
Operating income | 1,032.7 | 957.7
Other income (expense): |  |
Interest expense | (220.9) | (195.9)
Interest income | 0.3 | 0.2
Other, net | (0.6) | (0.3)
Total other expense, net | (221.2) | (196.0)
Income before income taxes | 811.5 | 761.7
Provision for income taxes | (4.8) | (6.4)
Net income | 806.7 | 755.3
Net income attributable to noncontrolling interests (see Note 10) | (7.9) | (1.8)
Net income attributable to limited partners | $ 798.8 | $ 753.5
Earnings per unit: (see Note 13) |  |
Basic earnings per unit (in dollars per unit) | $ 0.87 | $ 0.85
Diluted earnings per unit (in dollars per unit) | $ 0.85 | $ 0.83

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